Description: PLA Navy crew loading a Yu-6 torpedo into the launch tube of the Type 039 Song class submarine (Source: Chinese Internet).描述：PLA海军人员装填一枚鱼-6鱼雷到039型宋级潜艇的发射管内（来源：中国英特网）

The Yu-6 is the 533mm wire-/acoustic-/wake-homing heavy torpedo designed by 705 Institute (also known as Xi’an Precision Machinery Institute), a R&D branch of the China Shipbuilding Industry Corporation (CSIC) in Xi’an, Shaanxi province. The Yu-6 is the most advanced and capable indigenous torpedo in service with the People’s Liberation Army Navy (PLAN), designed to engage both deep-diving submarines and surface ships. The torpedo entered the PLAN service in 2005, carried by the Type 039 (Song class) and Type 039A (Yuan class) conventional submarines, and possibly the newly launched Type 093 (Shang class) and Type 094 (Jin class) nuclear-powered submarines too.

鱼-6是由705研究所（也即是西安精密机械研究所）设计的一种533毫米导线-/声音-/尾流归向重型鱼雷，该所是位于陕西省西安中国造船工业公司（CSIC）的一个研究开发分部。鱼-6是在中国人民解放军海军（PLAN）中服役的最先进和性能最好的国产鱼雷，设计同深-潜的潜艇和水面舰艇交战。鱼雷在2005年进入PLAN服役，被039型（宋级）和039A型（元级）常规潜艇，还有可能最近下水的093型（商级）和094型（晋级）核潜艇携带。

Description: The Yu-6 torpedo designed to engage both deep-diving submarines and surface ships (Source: Chinese Internet).描述：鱼-6鱼雷设计交战深-潜的潜艇和水面舰艇两者（来源：中国英特网）

In the mid-1980s, the PLAN decided to develop a new heavy torpedo for both anti-ship warfare (ASuW) and anti-submarine warfare (ASW) roles, by reverse-engineering a single Mk-48 torpedo recovered by Chinese fishermen in the late 1970s or early 1980s. The development project was later put on a halt after few prototypes were produced due to enormous technical difficulties and lack of funding. However, research on the Otto fuel II and wire guidance was continued by a small team.

在1980年中期，PLAN决定为反舰战（ASuW）和反潜战（ASW）任务发展一种新的重型鱼雷，通过反向-工程在1970年后期或1980年早期被中国渔民回收的唯一的一枚美制Mk-48鱼雷。发展计划稍后由于不多的原型带来巨大的技术困难和资金缺乏被安排停止。然而，在Otto燃料II和制导方面的研究被一个小组继续从事。

As the PLAN realised that its current torpedoes were unable to meet its requirements for modern naval warfare, the Yu-6 project was officially revived in 1995, with Dong Chun-Peng appointed as the chief designer. The revised Yu-6 design has possibly incorporated some Russian technologies, particularly the unique wake-homing technology. A number of Chinese organisations were involved in the Yu-6 development, including Shanghai Jiaotong University that developed new alloy for the torpedo casing; Tianjin Rubber Research Institute that supplied the noise-reduction casing for the acoustic seeker; Harbin Electro Carbon Research Institute tasked to develop the graphite material used to make engine valves and other components; Yizheng Shuanghuan Piston Ring Co. Ltd. that developed the piston ring for the torpedo propulsion.

同样地PLAN现有的鱼雷不能符合它的现代海军的战斗需求，鱼-6计划正式地在1995年恢复，冬纯鹏（Dong Chun-Peng）被任命为主设计师。经修改的鱼-6设计已经可能吸收一些俄国技术，特别是独特的声导技术。许多的中国部门积极参与鱼-6发展，包括上海交通大学为鱼雷外壳发展了新合金；天津橡胶研究所为声音导引头提供消声外层；哈尔滨电碳研究所从事发展石墨材料用于制造发动机阀门和其它零件；仪征双环活塞公司为鱼雷推进发展了活塞环。

It was reported that the Yu-6 adopts a combined wire + active/passive acoustic + waking-homing guidance for different types of targets. It guidance system reportedly uses an Intel 80486-class microprocessor. The Yu-6 was also the first Chinese torpedo designed with the concepts of modular design and open architecture software programming in mind, so that new technologies and programmes could be readily incorporated whenever they become available.

据传闻鱼-6采用一种组合导线+主动/被动声音+尾流-归向制导用于不同类型目标。它引导系统根据传闻使用英特尔80486级的微处理器。鱼-6也是中国第一种采用模块化设计和开放结构软件编程理念设计的鱼雷，所以当它们变为可得，新技术和程序可能被毫不迟疑地吸收。